Kylie draws a triangle on a coordinate grid. She then performs the following transformations in the order below:
• a translation of 3 units to the left
• a dilation by a factor of 3
• a reflection across the x-axis
• a rotation of 180°
She claims the resulting triangle is congruent to the original triangle.
Which of Kylie's four transformations should she not have done in order for her claim to
be correct?

A) a translation of 3 units to the left

B) a dilation by a factor of 3

C) a reflection across the x-axis

D) a rotation of 180•